Gearing.



L. J. PLINT.

GBARING.

APPLICATION FILED 00T. 18, 1911.

Patented A101121, 1914 viii/w? l rra/Marr:

UNITED STATES PATENT OFFICE.

LOUIS J'. FLINT, OF SOUTH WHITLEY, INDIANA, ASSIGNOR TO GRIP NUTCOMPANY,

or CHICAGO, ILLINOIS,`

A CORPORATION OF ILLINOIS.

GEARING.

Specification of Letters Patent.

Patented Apr. 21, 1914:.

Application filed October 18, 1911. Serial No. 655,334.

To ZZ 7071.012?, 'it may concern Be it known that I, Louis J. ELINT, acitizen of the United States, and residing at South Vhitley, in thecounty of Whitley and State of Indiana, have invent-ed a new and usefulImprovement in Gearing, of which the following is a completespecification.

rI`he main objects of this invention are to. provide an improved gearingespecially adapted for driving and adjusting magneto armatures; toprovide an improved gearing of the planetary type adapted to drive oneshaft from another and adapted to vary the angular relation of one shaftwith respect to the other independently of the variation caused by theoperation of the shafts; to provide an improved gear-ing of very compactstructure adapted to operate with a minimum amount of friction andnoise; to provide an improved gearing in which all of the gears aremounted in a rotary element so as to intermesh with each other, and inwhich part of the gears are adapted to be rotated about the other gears;to provide a differential gearing for magnetos adapted to bedisconnected from the armature shaft and removed intact from the easingfor the purpose of inspection and repair; and to provide a strongdurable and cheap construction adapted to perform its work with greatefiiciency.

A specific embodiment of the invention is illustrated in theaccompanying drawings, in which:

Figure 1 is a side elevation of the gearing embodied in this invention,and mounted in a magneto casing, which is in section. F ig. 2 is an endelevation of the gearing removed from the magneto casing. Fig. 3 is aside elevation of the drive shaft, with the drive and driven gearsthereon. Fig. 4. is a longitudinal section of the rotatable frame forthe gearing. Fig. 5 isa side elevation of the bearing bushing for thedriven gear. Fig. 6 is a side elevation of the driven gear. Fig. 7 is aside elevation of the bearing bushing for the drive shaft. Fig. 8 is aside elevation of one of the intermediate or transmission gears. F ig. 9is a side elevation of the other intermediate or trans mission gear.

In the construction shown, the rotary carrying frame or member 1 for thegears and their bearings, comprises two annular end posite face with aspacing shown members 2 and 3 which are connected together in axialalinement by the arc shaped sleeve or hub f1. The end mem-bers 2 and 3are of such diameter that they fit closely in the extension 5 of themagneto casing in which they are adapted toy rotate, and the innermember 3 abuts against a bearing member 6 carried in said extension.

Rigidly secured in the end member 2 is a bearing bushing 7 having aperipheral flange 8 which abuts against the outer face of said member,and rigidly secured in the end member 3 is a bearing bushing 9 hav` inga iange 10 at its outer end which abuts against the outer face, or thatfarthest removed from the member 2, of the member 3. Said bushings areheld in place by set screws extending radially through the end memers.

The drive shaft 1l is journaled in the bushing 7, and its inner end 12is reduced in diameter and projects into the bushing 9. Rigidly securedon the reduced portion 12 of the drive shaft is the drive gear 13, whichabuts at one face against the inner face of the end member 2 and isprovided on its opsleeve 1K1. Loosely mounted on the reduced portion 12of the shaft 11 is the driven gear 15 which is in axial alinement withthe gear 13 and bears at one face against the end of the sleeve 14C andat its other face against the inner face of the end member3. The drivengear 15 is` provided with a sleeve 16 which projects through the bearingbushing 9 and is provided in its outer end with a clutch member 17. Theclutch member 17 is adapted to receive the complemental clutch member 18on the armature shaft 19 to drive said armature shaft. The armatureshaft is provided with a bearing surface 20 between which and thebearing member Glare interposed the bearing balls 21.

Rigidly but removably secured in the end members 2 and 3 are the bearingshafts 22 and 23, which are held in place by set screws 24 in the member3. The shafts 23 and 24e are parallel with the shaft 11,' and may or maynot be spaced the same distance there-V from, dependent upon therelative size of gears employed. Y

Journaled on the shaft 23 adjacent the'end member 2 and meshing with thedrive gear 13, 1s the intermediate or transmission gear 25, which is ofgreater length than the gear Vend member o.

. gear 25 and the driven gear 15, is the transmission gear 27 -having abearing or spacing sleeve 28 which'abuts `against the end member 2.

The gears 13, 15, 25 and 27, are herein shown as spiral gears, though itis obvious that straight or spur gears may be employed if desired. itwill also be understood that the gears may all be of one size or theymay be of different sizes, dependent upon the relative speeds desiredfor the drive and driven shafts.

The end member 2 is provided with a lever 29 which projects through aslot in the extension 5 and by means of which the frame 1 may be rotatedin the extension 5 to adjust t-he position of the armature with respectto its fields and thereby advance or retard the spark. r[he outer end ofthe extension l5 is provided with a removable plate 30, through whichthe shaft 11 extends, and which when removed permits the gearing as aWhole to be withdrawn from the extension.

The operation of the construction shown is as follows: The gearing whenassembled forms a unitary structure capable of being as a wholeconnected to or disconnected from the magneto armature shaft. Then thegearing is inserted in the extension 5 of the magneto casing the clutch1'7 connects with the clutch member 18 and enables the driven gear 15 todrive the armature shaft. As shown, the gears 13, 15, 25 and 27 causethe armature'shaft to rotate in the opposite direction from the driveshaft and at the same speed, though by inserting an odd number ofintermediate or transmission gears the armature shaft may be rotated inthe same direction as t-he drive shaft, and by varying the relativesizes of the gears the speed of vthe armature shaft may be made greateror less than that of the drive shaft. The shaft 11 is connected with theengine to be ignited by themagneto, and to advance or retard f the sparkrelative to the positions of the engine pistons, it is only necessary torotate the gear frame 1 a partial revolution to cause the armature toapproach the fields sooner or later with respect to the Ymovement, vofthe pistons. lf the frame is rotated oppositely from the direction ofrotation of the ldrive shaft the armature will approach the fieldssooner and advance the spark, and if rotated in the same direction asthe drive Vthe shaft willbe retarded, when the gearing is such that thearmature shaft is rotated opv positelyfrom the drive shaft. The rotationof the'drive gear, when in operation, acting on the intermediate gearsalways has a tendency to either' advance or retard the spark dependentupon the direction of rotation of the armature with respect to the driveshaft. This tendency is controlled by the lever 29 which may be held inadjusted position in any desired manner.

Vhile but one specific embodiment of the invention has been herein shownand described it will be understood that many details of theconstruction shown may be varied or omitted without departing from thescope of the claims.

I claim:

1. In a device of the class described in combination, a frame comprisingtwo disklike members having central apertures, and rigidly securedtogether, a bearing bushing in each of said apertures provided with afla-nge larger than the aperture, fastening means for said bushings, adriving shaft mounted in one of said bushings, a gear fixed on saidshaft normally carried between said members, a second gear loose on saidshaft normally carried between said members, said gears being of greaterexterior dialneter than the interior of said bushings, but of lessexterior diameter than the interior of said apertures, whereby saidshaft and gears may be removed from said frame by removing saidbushings.

2. In a device of the class described in combination, a frame comprisingtwo disklike members having central apertures, and rigidly securedtogether, a bearing bushing in each of said apertures provided with aange larger than the aperture, fastening means for said bushings, adriving shaft mounted in one of said bushings, a gear fixed on saidshaft normally carried between said members, and a second gear loose onsaid shaft normally carried between said Amembers, said gears being ofgreater exterior diameter than the interior of said bushings, but ofless exterior diameter than the interior of said apertures, whereby saidshaft and gears may be removed from said frame by removing said bushingsand gears carried between said members for driving said loose gear fromsaid fixed gear.

3. Gearing, comprising a frame, a drive shaft journaled in and supportedby the fra-me, a drive gear rigidly secured on the drive shaft, a drivengear rotatively mounted on the drive shaft, and intermeshing gearsjournaled in the frame parallel with the drive shaft and intermcshingwith the drive and driven gears.

t. Gearing, comprising an annular f ame, a drive shaft journaled axiallyof the frame and supported thereby, a fixed gear and a loose gear onsaid shaft, shafts mounted in the frame parallel with the drive shaft,and a train of intermeshing intermediate gears on said shafts meshing atone end with the fixed gear and at the other end with the loose gear.

5. Gearing ctunprising a drive shaft, a frame in which said shaft isrotatively mounted, a stationary easing in which said frame is rotatablymounted, a fixed drive gear and a loose driven gear on the `drive shaft,intermeshing intermediate gears journaled in the frame and meshingwiththe fixed and loose gears, and means for rotat ing the frame andcausing the intermediate gears to vary the angular rotation of thedriven gear with respect tothe drive gear independently of the variationCaused by the operation of the drive shaft.

6. Gearing, Comprising a drive shaft, a rotatable frame surrounding andsupporting the shaft, a fixed drive gear on the shaft,l

a driven gear journaled on the shaft and in the frame, and meansjournaled in the frame for operatively connecting the drive and drivenshafts.

7. Gearing, comprising a frame, a drive shaft journaled in the frame andsupported thereby, a drive gear rigidly secured on the shaft, a drivengear journaled on the shaft and having a clutch member thereon extendingthrough the end of the frame and adapted to be connected with anarmature shaft, shafts mounted in the frame parallel with the driveshaft, and intermediate gears on said shaft meshing with each other andwith the drive and driven gears.

8. Gearing comprising annular end members rigidly Connected together, adriven gear j ournaled in and supported by one of the end members andhaving a clutch member thereon adapted to engage an armature shaft, adrive shaft liournaled in the frame and in said driven gear andsupport-ed bly said frame, a drive gear rigidly fixed on the driveshaft, shafts mounted in the frame parallel with the drive shaft, andgears on said shafts meshing with each other and with the drive anddriven gears.

9. The eombination of a cylindrical casing, an armature shaft having abearing in said casing, a frame comprising two flat ring memberssupported by and having frictional engagement with the interior of saidcasing and a sleeve connecting said ring members, a. driving shaftjournaled in and supported by said frame, a driving gear fixed on saidshaft, a driven gear mount ed loosely on said shaft and having a sleeveprovided with a notch for engaging said armature shaft, and a set ofgears mounted on said frame for operatively connecting said driving anddriven gears.

10. The combination of a cylindrical oas ing, a frame supported withinandhaving frietional engagement with said easing, a driving shaftsupported by said frame, a driven shaft journaled directly in saideasing, gearing supported by said frame for driving one shaft from theother, an armature connected to said driven shaft, and means forexciting said armature.

11. The combination of a casing, a frame supported within said casing,a, driving shaft supported by said frame, a. driven shaft journaled insaid casing independently of said frame, gearing supported by said framefor driving one shaft from the other, and means for turning said framewithin said casing.

12. The combination of a normally stationary frame, a driving shaftsupported by said frame, a driven gear rotatably supported on saidshaft, a driven shaft in alinement with said driving shaft and havingloose connection with said driven gear, and means for driving saiddriven gear from said driving shaft. Y

13. In a device of the class described in combination, a framecomprising two disklile members having centralapertures and rigidlysecured together, a bearing bushing in each of said apertures providedwith a flange larger than the aperture, said bushings being arrangedwith said flanges on the outside of said frame, a driving shaftjournaled in one of said bushings, a driving gear fixed on said shaftbetween said members provided with a collar, a driven gear loose on saidshaft abutting against the eollar of said driving gear and also providedwith a collar which is ournaled in the other of said bushings, means forholding said bushings in position, means for driving said driven gearfrom said driving gear, and means for rocking said frame.

14. In a device of the class described in combination, a framecomprising two disklike members having central apertures, and rigidlysecured together, a bearing bushing in each of said apertures providedwith a flange larger than the aperture, fastening means for saidbushings, a driving shaft mounted in one of said bushings, a gear fixedon said shaft normally carried between said members, a second gear looseon said shaft normally Carried between said members, said gears being ofgreater exterior diameter than the interior of said bushings, but ofless exterior diameter than the interior of said apertures, whereby saidshaft and gears may be removed from said frame by removing saidbushings, and means for rocking said frame.

15. The combination of a fixed casing, a frame supported wit-hin saidcasing comprising a pair of disk-like members united by a half roundconnecting member, a driving shaft supported by said frame, a drivenshaft journaled in said easing independently of said frame, gearingsupported by said frame for driving' one shaft from the other, and meansfor turning said frame within said casing.

16. The combination of a fixed casing, a frame supported Within saidcasing, comprising a pair of disk-like members connected by a half roundmember, a driving shaft having a driving gear rigidly attached theretosupported by said frame, a bushing intermediate said frame and saiddriving shaft having an exterior diameter greater than that of saiddriving gear, a driven shaft journaled in said casing independent ofsaid frame, gearing supported by said fra-ine for driving one shaftJfrom the other, and means for turning said frame Within said casing. Y

17. The combination of a fixed casing, a 'frame supported Within saidcasing compris ing tivo disk-like members connected by a half roundmember, a driving shaft having a driving gear rigid therewith mountedcen LOUIS J. FLINT.

itnesses FRANCIS B. Mon, WILLIAM S. LANCASTER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

